GB2195778B - Circuit arrangement for capacitance or admittance measurement - Google Patents
Circuit arrangement for capacitance or admittance measurementInfo
- Publication number
- GB2195778B GB2195778B GB8723024A GB8723024A GB2195778B GB 2195778 B GB2195778 B GB 2195778B GB 8723024 A GB8723024 A GB 8723024A GB 8723024 A GB8723024 A GB 8723024A GB 2195778 B GB2195778 B GB 2195778B
- Authority
- GB
- United Kingdom
- Prior art keywords
- capacitance
- circuit arrangement
- admittance measurement
- admittance
- measurement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
- G01R27/2605—Measuring capacitance
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Measurement Of Current Or Voltage (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863633792 DE3633792A1 (de) | 1986-10-03 | 1986-10-03 | Schaltungsanordnung zur kapazitaets- oder admittanz-messung |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8723024D0 GB8723024D0 (en) | 1987-11-04 |
GB2195778A GB2195778A (en) | 1988-04-13 |
GB2195778B true GB2195778B (en) | 1990-04-18 |
Family
ID=6311027
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8723024A Expired - Fee Related GB2195778B (en) | 1986-10-03 | 1987-10-01 | Circuit arrangement for capacitance or admittance measurement |
Country Status (4)
Country | Link |
---|---|
US (1) | US4833393A (de) |
JP (1) | JPH0644026B2 (de) |
DE (1) | DE3633792A1 (de) |
GB (1) | GB2195778B (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5057775A (en) * | 1990-05-04 | 1991-10-15 | Genrad, Inc. | Method of testing control matrices for flat-panel displays |
US5365783A (en) * | 1993-04-30 | 1994-11-22 | Packard Instrument Company, Inc. | Capacitive sensing system and technique |
US5802728A (en) * | 1995-08-17 | 1998-09-08 | Watson Industries, Inc. | Liquid level and angle detector |
US5973415A (en) * | 1997-08-28 | 1999-10-26 | Kay-Ray/Sensall, Inc. | Capacitance level sensor |
US6392542B1 (en) | 1999-07-12 | 2002-05-21 | Automotive Systems Laboratory, Inc. | Occupant sensor |
US6825765B2 (en) | 1998-12-30 | 2004-11-30 | Automotive Systems Laboratory, Inc. | Occupant detection system |
DE19904608C2 (de) * | 1999-02-05 | 2002-01-10 | Vaclav Vancura | Vorrichtung zur Prüfung eines Elektrolyt-Kondensators und Verfahren zur Prüfung eines Elektrolyt-Kondensators |
US6598900B2 (en) | 1999-04-19 | 2003-07-29 | Automotive Systems Laboratory, Inc. | Occupant detection system |
DE60122159T2 (de) * | 2000-05-26 | 2007-07-05 | Automotive Systems Laboratory Inc., Farmington Hills | Besetzungssensor |
US9687169B2 (en) * | 2011-12-08 | 2017-06-27 | Kimberly-Clark Worldwide, Inc. | System, controller, and method for determining conductance of an object |
JP6168067B2 (ja) * | 2012-12-24 | 2017-07-26 | 新東工業株式会社 | 粉粒体の検出方法及び粉粒体検出装置 |
DE102013112794A1 (de) * | 2013-11-19 | 2015-05-21 | Alexander Gassinez | Vorrichtung sowie Verfahren zur Bestimmung der elektrischen Kapazität eines biologischen Objektes |
CN109045468B (zh) * | 2018-08-09 | 2022-05-24 | 西安科悦医疗技术有限公司 | 一种耳部迷走神经刺激***及其装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1249404B (de) * | 1967-09-07 | International Business Machines orporation, Armonk, N Y (V St A) | Direkt anzeigendes Kapazitatsmeßgerat " 1 65 V St Amerika | |
US4142144A (en) * | 1977-11-07 | 1979-02-27 | General Scanning, Inc. | Position detector |
US4243933A (en) * | 1978-09-20 | 1981-01-06 | Analogic Corporation | Capacitance measurement apparatus |
FR2454083A1 (fr) * | 1979-04-09 | 1980-11-07 | Facom | Dispositif de mesure de la position relative de deux objets |
JPS56114097A (en) * | 1980-02-15 | 1981-09-08 | Hokushin Electric Works | Physical quantity converter |
US4389646A (en) * | 1980-04-30 | 1983-06-21 | Fuji Electric Co. Ltd. | Displacement converting circuit arrangement |
US4719409A (en) * | 1985-10-02 | 1988-01-12 | Mechanical Technology Incorporated | Digital signal output capacitance sensor displacement gauging system |
-
1986
- 1986-10-03 DE DE19863633792 patent/DE3633792A1/de active Granted
-
1987
- 1987-09-09 US US07/094,860 patent/US4833393A/en not_active Expired - Lifetime
- 1987-10-01 GB GB8723024A patent/GB2195778B/en not_active Expired - Fee Related
- 1987-10-02 JP JP62248234A patent/JPH0644026B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US4833393A (en) | 1989-05-23 |
GB8723024D0 (en) | 1987-11-04 |
DE3633792C2 (de) | 1991-07-11 |
JPS63165771A (ja) | 1988-07-09 |
JPH0644026B2 (ja) | 1994-06-08 |
DE3633792A1 (de) | 1988-04-14 |
GB2195778A (en) | 1988-04-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20031001 |